Strap-end hook



y 1929- I "-w. WALLENTHIN 15.153

' STRAP END HOOK Filed Aug; 7, 1928 2 Sheets-Sheet l llllillliiill May 28, 19,29. w WALLENTHIN 1,715,153

STRAP END HOOK Filed Aug. '7, 1928 2 Sheets-Sheet 2 Patented May 28, 1929..

"uirsn .rr sass WALFRID WALLENTHIN, OF AT'ILEIBORO, MASSACHUSETTS, ASSIGNOR TO THE ASSO- OIATED A T TLEBORO MANUFACTURERS, INCL; 0F AT'ILEBORO, MASSACHUSETTS, A

COBEOR-ATION OF MASSACHUSETTS.

STRAP-END HOOK.

Application filed August 7, 1928. Serial No. 297,982.

.My invention relates to strap end hooks, particularly adaptable "for use m clamping b *acelet strap ends to wrist watch bars.

An object of my invention is to provide a novel type of strap hook easy to fabricate, simple and sure in its action and which may be readily released with the bottom connector section thereof in firm position on the wrist or other object by merely pivoting the top connector section upwards to permit withdrawal of the wrist watch bar from the hook portion thereof. 1

A further object of my invention is to provide a strap end hook which not only embodies the novel features referred to. but also one which readily extensible.

A further object of my invention is to provide a strap end hook which not only combines the novel locking features here inbe tore referred to but which also'contains means for resilient mounting of a strap end thereon so as to permit the clip to give to ease thewear of the bracelet or other object on the wearer. I V

A further object of my invention is to provide a strap end hook particularly adapt;- able for box link straps consisting of a plurality of. box link members pivotally joined together and which clip also extensible by having a box like rectangular connecting member ornamented to simulate the boxlinks resiliently mounted in the lower'connector section so as to permit'expansion of the strap within the hook and to leave no. gap'between the points of connection of the strap with the hook and thus to provide .an extensible strap which hast-he general appearance of non-extensible box link strap and end hook.

A further object of my invention is to provide a strap end hook having the same ornamental theme. or continuity of design as that of the box links themselves.

These and such other objects of my invention as may hereinafter appear: will be best understood from a description of the accompanying drawings,' which illustrate various embodiments thereof.

In the drawings, Fig. 1 is a side elevation of two ofmy improved strap end clips joining. the ends of aboX link strap toawrist watch. 1

.ture shown in Fig. 2.

Fig. 2 is a plan view of my improved attached box link strap.

jFlg. 3 is a reverse Fig. 4 is a side elevation or the structure shown in Fi 2 with my improvedstrap end hook in. closed locking position. 7 V 1 Fig. 5 is a side elevation similar to Fig. 4 with the top connector section pivoted-to open position forremoval of the wrist Watch bar from the hook. 1 V

Fig. 6 is a longitudinal sectional view taken along theline 6*6 of Fig. 2.

Fig.7 is aview similar to Fig. 6 withthe strap expanded.

Fig. 8 is a crosssectional viewtaken along the line 8S ofFig. 4:. r

Fig. 9 is a plan view of a modified form of myimproved strap end clip and adjacent portion of a box link strap. n

Fig. 10 is a side elevation of the. structure shown in Fig. :9 with the topconnector sectionpivotedto open position.

Fig. 11 isa section along the line ll ll of Fig. 9. l

plan View of the struc- Fig. 12 is a side elevation "of'a further v modified'form of my strap end clip and adacent'portion of a strap end in closed position employing. an intermediate connector section to permit ready extension when desired of the strap end. clip for removal or other purposes.

Fig. 13 is a sideelevation ofthe modified structureshown 1n F g. '12 in open position, In the drawings, whereln likecharacters,

of reference generally indicate like parts throughout, 20 generally indicates'a strap end hookconstrueted' in accordance with the principles of my invention. While as stated,

my improved strap end to the article desired,

it is particularly adapted'as shown to attach an end 22 of a bracelet 23 to a wrist Watch bar 24- or like structure. 7

As stated a chief inventive feature of my invention consists in the improved structure of a strap end hook, whereby the top con- I nector section 26 which may be readily pivoted on thebottom. connector section 28 while said bottom connector section 28 is immovably held in position on the wearer I to permit ready; withdrawal of the wrist 13) and this feature is common to all of the embodiments shown.

I provide a, bottom connector section 28 preferably of rectangular boxlik-e shape to present the same general appearance as that of a box-link bracelet Where employed therewith. The bottom connector section 28 is provided with the side walls 32 and the bottom wall 34. The outer end 36 of the bottom wall 34- is preferably extended to form the outer locking tongue edge 36. The cute end of the top connector section 26 is pivotally mounted on said bottom connector section 28 near the outer end thereof by. means of the pivot pin 38 suitably mounted in the side walls 32 of the bottom connector section and in the side walls 40 of the top connector section. The top wall 42 of the top connectorsection 26 is extendedloutwards and formed into a downwardly projecting hook of a lengthjwhen the top connector section 26 is pivoted to closed posieon to form a bar receiving hooked locking closure 44 with the outer locking tongue edge 36 of'the bottom connectorsection 28. In order to retain the top'connector.sec-

tion 26 and bott'om'connectoi' section 28 together, provide suitable means on the respective side walls and 32 thereof to releasably secure said connector sections in closed position, said means being yieldable on pressure to release said top. connector section 26 to pivot on said bottom connector section 28 to the open position shown in tionally' engagethe side walls '32 of the bot tom" connection 28, I preferably provide suitable means on said side walls ida-11d 232 to more securely lock said connector sections together. In the preferred embodiment shownI provide the resilient side walls 32 of the bottom connector section 28 with the projections 46 near the inner ends thereof adapted to register in the cooperating sockets or holes 18 near the inner ends of the resilient side Walls 40 of the top connector section 26 to resiliently retain said sections in closed position andfyet releasable due to the resiliency of the side walls 40 and 32 on downward pressurev exerted on the outer end of the top connector section or on upward pressure exerted on the inner end thereof to release to permit said top connector section to pivot on said bottom connector section to open position for removal of said bar therefrom.

As stated, I also providemeans on said bottom connector section for attachment of astrap end 22 thereto.- As shown in Figs.

9-11 I may nonextensibly attach the strap end 22 to the bottom connector section 26. lVhere a nonextensible strap is employed 1 preferably constructniy strap end hook so as to permit this resilient attachment. As also stated, my invention is particularly adapted for use in non extensiblebox-link.

straps consisting of a plurality of box-like link sections 52 suitably otally joined together on the pivot bars 54. As these box-f link sections are of square or rectangular formation, I 'n'efcrably construct my im proved strap end hook of the same general configuration so as to preserve the some continuity of design and ornamental theme in the strap end clip as is present in the boxlinks 52 of the strap 23 and I thus may as shown in particular in Fig. 9 insert asimilar ornament 56 in the top wall of the top counector section 26 to the ornaments 5S individually mounted in the box l nks 52 theur selves. In order to conceal the point of at tachment of the resilient strap end. hook 20 to the box-link bracelet 28, I preferably resiliently attach the strap end 22 to the bot tom connector section 28 in the spec-inc manner about to be described. i

For this purpose I provide a preferably rectangular connecting member (30 preferably twice as long as a box link 52 provided with a cross ridge G2 on the top wall G l thereof to give it the general appearance of two box-links and with said top wall 64 ornamented in similar fashion to the tops of the box links 52. Where this structure is employed I provide the bottom connector section 28 with the inner end wall 66 having the transverse slit 68 therein near the upper edge thereof through which the connecting member 60 may readily slide. I

ing member'is also provided with the side walls 67 projecting downwardly on each side thereof and the outer wall 69 projecting The connect downwards from the outerend thereof. The

strap end 22 may be pivotally attached to the inner end of said connecting member 60 by'the pivotpin 7O suitably transversely mounted of the side walls 67 of said con necting member 60. The outer wall 69 of said connecting member 60 may also be provided with the transverse slit 72through which the guide bar 74 may project on extension of said connecting member 60. Said guide bar 74 has its inner upturned end 76 suitably retained in the inner end of the bottom connector section 28 by the pressure of the spring 78 .which forces it against the end wall 66 of the bottom connector section. The spring 78is suitably mounted on said guide bar 74 and has the outer end thereof abutting the outer wall 69 of said connecting member 60 and the inner end thereof abutting the inner wall '66 of said bottom connectorsection 28 through the medium of the upturned end 7 of said guidevbar 74 for urging saidconnecting: member 60 into said bottom connector sect on, It is thus obvious that on cxtenslon of said strap 23 said connecting member 60 may. readily slide within the said bottom connector section 28 against the pressure of the spring 78 and that when tension on said bracelet is released the spring 78 will urge said connecting member 60 within said bottom connector particular purpose such as for removal or attachment, I may so construct my improved strap end hook to permit this feature andI have shown a structure suitable for this purpose in Figs. 12 and 13. In this embodiment the top connector section 26 and bot- .tom connector section 28 are constructed in identical fashion with that shown in the other embodiments but I'provide an intermediate connector section suitably pivotally attached to andintermediate said top connector section 26 and bottom connector section 28. In the description andin the claims I refer to the ends of said intermediateconnector section 80 in the positions they occupy'in closed position for it obvious from an inspection of the structure that they become reversed when the strap end hook is extended. The intermediate connector section 80 has its outer end 82 suitably pivoted on the outer endotthe bottom connector section 28 by means of the,

pivot bar 38 and has its inner end 84: suitably pivoted to the inner end of the top connector section by means of the pivot bar 86. The locking tongue edge 36 may be providedon the bottomconnector. section as usual or if desired on the outer end 82 of the intermediate connector section 80. lhe side walls 88 of the intermediate connector sect-ion 80 are of asize to compactly telescope when in closed position between the side walls 40 of the top connector section and side walls 82 of the bottom connectorsection. In the embodiment shown the strap end hook is retained in closedposition by the friction of the respective walls 40, 88 and 32 against each other and the specific structure of the connector sections thoughif desired suitable additional means may be provided for this purpose. Thus when it is desired to open up this type of strap end hook the top connector section 26 is grasped and pulled upwards and outwards, thus permitting the release of the bar 24 from the hookedlock ing closure 44 and the top connector sect-ion to. pivot outwards, the intermediate: connector section 80 as it'is pivotedon both ends being capable" of outward movement until sand-cooperating connector sections 26, 80

and 28 may be in open extended substantial alignment thereby substantially increasing the length of the strap end hook or the combined length of the strap end hook and noncxtensible strap 1f deslred for any purpose, such as for removal or attachment. In this embodiment the strap end 22 is suitably'at- 1 tached as usual to the bottom connector sec-- tion 28 either in a fixed, manner or in a resilient manner such as shown in Figs. 6 and 7.

It is obvious that I have provided a novel type of strap end" hook in which the'top connector section may be readily pivoted to open position on the lower connector section, particularly adapted for use on box lmk bracelets to simulate the appearance thereof and to provide the same type of ornamental theme as in the strap itself with theadvan tages and/or modifications as clearly. indicated above v r 2 It is understood that my invention is not limited to the specific embodiments shown and that various deviations thereof may be made therefrom without departingfrom' the spirit and scope of the appendedclaims,

That Iclaim is: v

1. A strap end hook, comprising a bottom box-like connector sect-ion having side walls and a bottom wall with the bottom wall thereof extended into an outer locking tongue edge, a topconn'ector section having its outer 'end pivotally mounted thereon near the outer end thereof having side walls and a top wall extended outwards and formed into a downwardly projecting hook of a length to formav bar receiv ng hooked locking closure with the outer locking tongue edge of the bottom connector sect-ion, means I on the sidewalls of sald top and bottom connector sections to releasably secure sald cons nector sections in closed position and means for attachment of a strap end on said bottom connector section whereby the inner end of the top connector section may be pivoted upwardly to open position to cause the hooked outer end thereof to'pass downwards beyond said locking tongue edge to form a passage for removal of the bar from said hook and whereby when said top connector section is pivoted to closed locked position on said fixed bottom connector section, said locking tongue edge may form with said hook a bar retaining closure.

2. A strap end hook, comprising a bottom box-like connector section havi'ng'side walls and a bottom walh with the bottom: wall thereof extended into an outer loeking ton gue edge, a top connector section having its outer end pivotally mounted thereon near the outer end thereofhaving a top wall ex tended outwards and formed into a downwardly projecting hook of a length when the top connectorsection is pivoted to closed position to form a bar receiving hooked locking closure with the outer locking tongue edge of the bottom connector section and side: walls adapted to overlap and friction-ally engage the side walls of the bottom connector section to retain said connector sections in closed locked position, and means for attachment of a strap end on' said bottom connector section whereby the inner end of the top connector section may be pivoted upwardly to open position to cause the hooked outer end thereof to pass downwards beyond said locking tongue edge to form a passage for removal of the bar from said hook and whereby when said top connector section is pivoted to closed locked position on said lined bottom connector section, said locking tongue edge may form with said hook a bar retaining closure.

3. A strap end hook comprising a bottom box-like connector section having side walls having projections thereon near their inner ends and a bottom wall with the bottomwall thereof extended into an outer locking tongue edge,a top connector section having'its outer end pivotally mounted thereon near the outer end thereof having side walls and'a top'wall extended outwardsand formed into a downwardly projecting hook ofa length whenthc top connector section is pivoted to closed position to form a bar receiving hooked locking closure with the outer look ing tongue edge of the bottom connector section, side walls adapted to overlap the side walls of the bottom connector section having sockets near the inner ends adapted to receive the resilient projections from the side wa is of the top connector section to resiliently retain said sections together and means for attach ment of a strap end on said bottom connector section whereby the inner end of the top connector section may be pivoted upwardly to open position to cause the hooked outer end thereof to pass downwards beyond said locking tongue edge to form a passage for removal of the bar from said hook and whereby when said top connector section is pivoted to closed locked position on saidfixed bottom connector secupwards on said bottom connector section to open position for removal of said bar end and means for attachment of a strap end on said bottom connector section. V

5. A strap end hook, comprising a bottom connector section, a top connector pivotally mounted thereon having a hook projecting outwardly and downwardly therefrom adapted to form when the inner end of said top connector section is pivoted downwards to closed position on: said fixed bottom con nector section ahooked bar receiving locking closure, means to secure said connector sections together in closed'position yieldable on pressure to permit the inner end of said top connector section to pivot upwards on said bottom connector section to open position for removal of said bar end and means for attachment of a strap end on said bottom connector section. V i

6. A strap end hook, comprising a bottom connector section having a'locking tongue portion projecting outwards therefrom, an

intermediate connector section having its outer end in closed position pivoted on the outer end of said bottom connector section, atop connector section havmg its inner end pivoted on the inner end of the intermediate sectlon in closed positlon, whereby saidcon nector sections may be pivoted upwards and forwards into open extended alignment and a into telescoping closed position, said topconnector section having a hook projecting outwardly and downwardly therefrom adapted to form when said top connector section is pivoted downwards to closed position on said bottom connector section, a

hooked bar receiving locking closure, means to secure saidconncctor sections together in closed position yieldable on pressure to permit said top connector sections to pivot upwards on saidbottom connector section to open position for removaluof said bar end and means for attachment of a strap end on said bottom connector section.

connector sections may be pivoted into open extended alignment and into telescoping closed position, said top connectorsection having a hook projecting outwardly and downwardly therefrom adapted to form when said top connector section is pivoted to closed position on said bottom connector section a hooked bar receiving locking closure'and side walls adapted to overlap and ,frictionally engage the side walls of the an outer locking tongue edge, a top connec-' tor section having its outer end pivotally mounted thereon near the outer end thereof having side walls and a top wall extended outwards and formed into a downwardly projecting hook of a length when the topconnector section is pivoted "to closed position to form a bar receiving hooked locking closure with the outer locking tongue edge of said bottom connector section, means on the side walls of said top and bottom connector sections to releasably secure said connector sections in closed position, a connecting rectangular member in simulation of a plurality of box links slidably contained within said box-like bottom connector section having means on the inner end thereof for attachment of said box-link strap thereto and a spring urging said connecting member into said bottom connector section.

9. An extensible strap end hook for boxlink straps, consisting of a plurality of boxlink members pivotally joined together, comprising a rectangular box-like bottom connector section having side walls and a bottom wall with the bottom wall thereof extended into an outer locking tongue edge, and an inner wall having a transverse slit therein near the upper edge thereof, a top connector section having its outer end pivotally mounted thereon near the outer end thereof having side walls and a top wall extended outwards and formed into a downwardly projecting hook of a length when the top connector section is pivoted to closed position to form a bar receiving hooked locking closure with the outer locking tongue edge of said bottom connector section, means on the side walls of said top and bottom connector sections to releasably secure said connector sections in closed position, a connecting box-like rectangular member having a downwardly projecting outer' wall and a top wall ornamented in simulation of a plurality i of box-links slidably contained within said box-like bottom connector section with said top wall projecting through said transverse slit in the inner wall ofthe bottom connector section and having means on the inner end thereof for attachment of said box-like strap thereto and a spring contained within said bottom connector section having the outer end thereof abutting the outer wall of said connecting member and the inner end thereof abutting'the inner wall of said bottom connector section forr urging said connecting member into said bottom connector section. 10. A strap end hook comprising a bottom connector section having. a locking tongue portion projecting outwards therefrom, a top connector having its outer end pivotally mounted thereon having a hook projecting outwardly and downwardly therefrom adapted to form when said top connector section is pivoted to closed position on said bottom connector section a hooked bar receiving locking closure, means to secure said connector sections together in closed position yieldable on pressure to permit said top connector section to pivot on' said bottom connector section to open position for removal of said bar end and means for resiliently attaching a strap end to said bottom connector section.

v 11. A strap end hook comprising a bottom connector section having a locking tongue portion, projecting outwards therefrom, a top connector section having'vits outer end mounted thereon having a hook projecting outwardly and "downwardly therefrom adapted to form when said top. connector section is pivoted to closed posi-' tion on said bottom connector section a hooked bar receiving locking closure, means to secure said connector sections together in closed position yieldable 011 pressure to permit said top connector section to pivot on said bottom connector section to open po-. sition for removal ofsaid bar end and a connector member resiliently slidable within.

said bottom connector section having means on the inner end thereof for attachment of a strap end thereto.

.12. A strap end hook for box-link straps consisting of a plurality of ornamental boxlink members pivotally oined together, comprising a bottom connector section, a top connector section having its outerend pivotally mounted thereon near the outer end thereof having a hook projecting outwardly and downwardly therefrom adapted to form when said top connector section is pivoted to closed position on said bottom connector section a hooked bar receiving looking closure, means to secure said connector sections together in closed position yieldable t on pressure to permit said top connector sectionto pivot on said bottom-connector'section to open position for removal of said bar end and means for attachment of a strap end on said bottomconnector. section, the top wall of the topconnector section having the same. ornamental theme as that of the box link strap.

In testimony whereof I aflix my'signat'ure.

, VVALFRID WVALLENTHIN. 

